#loader {
    position: fixed;
    left: 50%;
    top: 50%;
    z-index: 100000;
   
    margin: -75px 0 0 -75px;
    border: 16px solid #f3f3f3;
    border-radius: 50% !important;
    border-top: 16px solid #3498db;
    width: 100px;
    height: 100px;
    -webkit-animation: spin 2s linear infinite;
    animation: spin 1s linear infinite;
}

#loader2 {
    position: fixed;
    left: 50%;
    top: 50%;
    z-index: 100000;
   
    margin: -75px 0 0 -75px;
    border: 16px solid #f3f3f3;
    border-radius: 50% !important;
    border-top: 16px solid #3498db;
    width: 100px;
    height: 100px;
    -webkit-animation: spin 2s linear infinite;
    animation: spin 1s linear infinite;
}